Territorial area measuring equipment

Abstract

The utility model relates to territorial area measuring equipment, which comprises a measuring instrument and a supporting disc, a plurality of groups of pull ropes are fixedly connected to the back of the measuring instrument, a plurality of groups of winding discs are rotatably connected in the supporting disc, one end of each pull rope extends into the supporting disc and is fixedly connected with the winding disc, and the other end of each pull rope is fixedly connected with the supporting disc. The measuring instrument is used for measuring the area, so that the measuring efficiency is improved, in addition, the measuring instrument can be worn on the arm of a user through a pull rope by arranging the pull rope, and in the measuring process, the measuring instrument can be used for measuring the area of the user through the pull rope, so that the measuring efficiency is improved. The measuring instrument does not need to be held by a palm all the time, the fatigue degree is relieved, and the measuring instrument cannot fall off arms.

Description

Technical Field

[0001] The utility model relates to the technical field of area measurement equipment, in particular to a land area measurement equipment. Background Art

[0002] Land and resources planning is to take the whole country or a certain area of ​​the country as a whole, and formulate the development and utilization of land and resources within a certain period of time according to the natural characteristics and economic conditions, so it is necessary to measure the land area;

[0003] After searching, a Chinese patent with announcement number: CN219714271U discloses a land area measuring device, including a measuring device, the inner wall of the measuring device is rotatably mounted with a vertically set winding shaft, the outer wall of the winding shaft is fixedly sleeved with a take-up roller, the outer surface of the take-up roller is horizontally wound with a scale tape, an entrance and exit are opened on the side of the measuring device, one end of the scale tape passes through the entrance and exit and is fixedly connected to a ring, and a directional stake is fixedly connected inside the ring.

[0004] When this patent is actually used, there are the following defects:

[0005] In this patent, a graduated tape measure is used to pull and measure the land area, so it is less efficient for large areas of land;

[0006] In addition, there are also area measuring instruments in the prior art, but the existing area measuring instruments are all single-body structures, which require users to hold the instrument for a long time. Therefore, when the area to be measured is large, the holding time is also long, and the hand is prone to fatigue after a long time. Utility Model Content

[0007] In view of the technical problems that the measuring efficiency of the ruler is low and the existing area measuring instruments are all single-body structures, which require users to hold them for a long time. Therefore, when the measured area is large, the holding time is also long, and the hands are easily fatigued after a long time, the utility model provides a land area measuring device.

[0008] The technical solution adopted by the utility model is: a land area measuring device, including a measuring instrument and a support plate, the back of the measuring instrument is fixedly connected with multiple groups of pull ropes, the support plate is rotatably connected with multiple groups of winding disks, one end of the pull rope extends into the support plate and is fixedly connected to the winding, the outside of the support plate is also provided with a joint driving part for driving the winding disk to rotate, and the support plate is also provided with a one-way rotating component.

[0009] In one embodiment, the combined drive member includes a sprocket fixedly connected to the outside of the winding disk, a chain sleeved on the outside of the sprocket, and a handle rotatably connected to the outside of the support disk, and the handle is coaxially and fixedly connected to one of the sprockets.

[0010] In one embodiment, a rotating shaft is coaxially fixedly connected to the outside of the handle, and the rotating shaft is coaxially fixedly connected to the sprocket.

[0011] In one embodiment, the one-way rotation assembly includes a ratchet wheel fixedly connected to the outside of the rotating shaft and a pawl arranged outside the ratchet wheel.

[0012] In one of the embodiments, a fixing seat is fixedly connected inside the support plate, a pin is rotatably connected to the top of the fixing seat, the pin is fixedly connected to the pawl, and a torsion spring is sleeved outside the pin.

[0013] In one embodiment, the support plate is externally rotatably connected to a shift plate, and the shift plate is coaxially fixedly connected to the pawl.

[0014] In one of the embodiments, an arc-shaped groove is provided on the back of the measuring instrument.

[0015] The beneficial effects of the utility model are as follows: compared with the prior art, in the utility model, a measuring instrument is used for area measurement, so the measurement efficiency is improved, and in addition, through the setting of a pull rope, the measuring instrument can be worn on the user's arm through the pull rope, and during the measurement process, there is no need to hold the measuring instrument with the palm all the time, which reduces fatigue and the measuring instrument will not fall off the arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the support plate in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the chain and sprocket in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the ratchet in the utility model.

[0021] The markings in the figure are: 1. measuring instrument; 2. pull rope; 3. support plate; 4. handle; 5. dial plate; 6. arc groove; 7. winding plate; 8. sprocket; 9. chain; 10. fixed seat; 11. pawl; 12. ratchet; 13. rotating shaft; 14. torsion spring. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is combined with Figure 1-5 The utility model is further described.

[0025] In order to solve the problems existing in the background technology, the present application proposes the following technical solutions: a land area measuring device, including a measuring instrument 1 and a support plate 3. The measuring instrument 1 is an existing product, such as a measuring instrument 1 with a model number of: Dongmei DCM-101. In order to correspond to the arm, an arc groove 6 is provided on the back of the measuring instrument 1.

[0026] In a further design, multiple groups of pull ropes 2 are fixedly connected to the back of the measuring instrument 1, and multiple groups of winding disks 7 are rotatably connected in the support disk 3. In this embodiment, four groups are arranged, and one end of the pull rope 2 extends into the support disk 3 and is fixedly connected to the winding disk 7. The winding disk 7 is used to wind and store the pull rope 2.

[0027] Among them, a joint driving component for driving the winding disk 7 to rotate is also provided on the outside of the support disk 3. Specifically, the joint driving component includes a sprocket 8 fixedly connected to the outside of the winding disk 7, a chain 9 sleeved on the outside of the sprocket 8, and a handle 4 rotatably connected to the outside of the support disk 3. The handle 4 is coaxially fixedly connected to one of the sprockets 8, and the outside of the handle 4 is coaxially fixedly connected with a rotating shaft 13, and the rotating shaft 13 is coaxially fixedly connected to the sprocket 8. Therefore, when the handle 4 is rotated, the handle 4 drives the sprocket 8 to rotate. Through the transmission of the chain 9, the sprocket 8 can rotate synchronously, and drive multiple winding disks 7 to rotate synchronously; the winding disk 7 winds the pull rope 2, thereby contracting and tightening the pull rope 2.

[0028] In a further design, a one-way rotating component is further provided on the supporting plate 3 .

[0029] The pawl 11 is fixedly connected to the outside of the rotating shaft 13 and the pawl 11 is arranged outside the ratchet 12. In addition, a fixing seat 10 is fixedly connected inside the supporting plate 3. A pin is rotatably connected to the top of the fixing seat 10. The pin is fixedly connected to the pawl 11. A torsion spring 14 is sleeved on the outside of the pin. Under the torsion of the torsion spring 14, the pawl 11 is tightly engaged with the ratchet 12. In order to facilitate the adjustment of the pawl 11, a dial plate 5 is rotatably connected to the outside of the supporting plate 3. The dial plate 5 is coaxially fixedly connected with the pawl 11, so that the handle 4 drives the ratchet 12 and the sprocket 8 to rotate. Through the coordinated use of the pawl 11 and the ratchet 12, the sprocket 8 can only rotate clockwise in one direction. Therefore, when the handle 4 is released, the pull rope 2 will not loosen. During subsequent disassembly, it is only necessary to toggle the dial plate 5 to drive the pawl 11 to rotate so that the pawl 11 is no longer engaged with the ratchet 12. Then the handle 4 is rotated to release the pull rope 2 and then take it out.

[0030] In order for those skilled in the art to fully understand the technical solution, this embodiment is summarized as follows:

[0031] When in use, the user wears the measuring instrument 1 on the arm, with the wrist passing through the bottom of the support plate 3 and the arc groove 6, and then refers to the attached Figure 4 , turn the handle 4 clockwise, let the handle 4 drive the ratchet 12 and the sprocket 8 to rotate, through the transmission of the chain 9, the sprocket 8 can rotate synchronously, and drive multiple winding disks 7 to rotate synchronously; the winding disk 7 winds the pull rope 2, thereby shrinking and tightening the pull rope 2, so that the measuring instrument 1 is firmly installed on the user's arm, and at the same time, through the coordinated use of the pawl 11 and the ratchet 12, the sprocket 8 can only rotate in one direction clockwise, so even if the handle 4 is released, the pull rope 2 will not loosen.

[0032] In summary, the utility model wears the measuring instrument 1 on the user's arm through the pull rope 2, so that during the measurement process, there is no need to hold the measuring instrument 1 with the palm all the time, which reduces fatigue and the measuring instrument 1 will not fall off the arm;

[0033] During subsequent disassembly, it is only necessary to toggle the paddle 5 to drive the pawl 11 to rotate, so that the pawl 11 is no longer engaged with the ratchet wheel 12, and then rotate the handle 4 to release the pull rope 2.

[0034] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A land area measurement device, characterized in that: The invention comprises a measuring instrument (1) and a support disk (3), wherein a plurality of pull ropes (2) are fixedly connected to the back of the measuring instrument (1), a plurality of winding disks (7) are rotatably connected to the support disk (3), one end of the pull rope (2) extends into the support disk (3) and is fixedly connected to the winding disk, a joint driving member for driving the winding disk (7) to rotate is also provided on the outside of the support disk (3), and the support disk (3) is also provided with a one-way rotating component.

2. A land area measurement device according to claim 1, characterized in that: The combined drive member comprises a sprocket (8) fixedly connected to the outside of the winding disk (7), a chain (9) sleeved on the outside of the sprocket (8), and a handle (4) rotatably connected to the outside of the support disk (3), wherein the handle (4) is coaxially fixedly connected to one of the sprockets (8).

3. A land area measurement device according to claim 2, characterized in that: The outside of the handle (4) is coaxially fixedly connected with a rotating shaft (13), and the rotating shaft (13) is coaxially fixedly connected with the sprocket (8).

4. A land area measurement device according to claim 3, characterized in that: The one-way rotating assembly comprises a ratchet wheel (12) fixedly connected to the outside of a rotating shaft (13) and a ratchet pawl (11) arranged outside the ratchet wheel (12).

5. The land area measurement device according to claim 4, characterized in that: A fixing seat (10) is fixedly connected inside the support plate (3), a pin is rotatably connected to the top of the fixing seat (10), the pin is fixedly connected to the pawl (11), and a torsion spring (14) is sleeved outside the pin.

6. The land area measurement device according to claim 5, characterized in that: The outside of the support plate (3) is rotatably connected to a shift plate (5), and the shift plate (5) is coaxially and fixedly connected to the ratchet pawl (11).

7. A land area measurement device according to any one of claims 1 to 6, characterized in that: The back side of the measuring instrument (1) is provided with an arc-shaped groove (6).

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